The data sheet states that it is fed from a double stacked, single fed magazine.
A combat pistol is the weapon of last resort. I would trade off comfort for ammo capacity any day. You are not support to sit around and try to get a perfect grip with your custom stipple job Gucci Glock (Agency/ZEV).
Nice catch, I mistranslated that part, it indeed said it is fed from a double stacked, single fed-magazine.
However, it kind of seems like QSZ193's magazine is single stack, especially when compared to QSZ92A/B's double stacked magazine.
First, it seems like QSZ193's magazine is a lot slimmer than QSZ92A/B's magazine. Second, if QSZ193's magazine is indeed double stack, single feed, then the top of the magazine should have a / \ shaped angle (which is present on the QSZ193A/B's magazine), but from the picture it seems like QSZ193's magazine is pretty flat like a 1911 magazine.
For comparison, here are some pictures of 1911 magazines (single stack) vs Glock magazines (double stack)